help!!! i have no signal on my pansat 2700-n2 clone
 

i have an issue i don't know much fta and bins and such but my boyfriend has been working on a pansat 2700-n2 clone that i just bought and he gets it up and running just fine but then it goes nuts and says i have no signal and if i'm lucky when i switch it off on the back and back on again i can sometimes get signal but it's only temporary if at all. i have a digiwave switch outside i've tried a viewsat switch and neither of them make any difference i have another receiver with pansat 2500 and that one works fine it's on a beausat switch i've tried swithing that switch to the 2700 and nothing works and the result is the same all around..... no signal ... i don't get it is it the bin files i don't know someone please guide me in the right direction any help is greatly appreciated thanks